Food is an important part of Indian culture, playing a role in everyday life as well as in festivals. Indian cuisine varies from region to region, reflecting the varied demographics of the ethnically diverse subcontinent. Generally, Indian cuisine can be split into four categories: North, South, East, and West Indian. Despite this diversity, some unifying threads emerge. Varied uses of spices are an integral part of food preparation, and are used to enhance the flavor of a dish and create unique flavors and aromas. Cuisine across India has also been influenced by various cultural groups that entered India throughout history, such as the Persians, Mughals, and European colonists. Though the tandoor originated in Central Asia, Indian tandoori dishes, such as chicken tikka made with Indian ingredients, enjoy widespread popularity.
Indian cuisine is one of the most popular cuisines across the globe. Historically, Indian spices and herbs were one of the most sought after trade commodities. The spice trade between India and Europe led to the rise and dominance of Arab traders to such an extent that European explorers, such as Vasco da Gama and Christopher Columbus, set out to find new trade routes with India leading to the Age of Discovery. The popularity of curry, which originated in India, across Asia has often led to the dish being labeled as the "pan-Asian" dish.